LUCKNOW: Comparing himself with Farhan Qureshi, played by R Madhavan in 3 Idiots, the 2009 Bollywood hit, he claims that he left engineering to follow his passion for photography. He is Abhay Singh, now known as IIT Baba by some and Engineer Baba by others, found on the Sangam ghats attending Mahakumbh. Reflecting on the growing pull among youth towards …